题干
The farmer _______ us _______ his farm.
A：leaded; to
B：led; to
C：leaded; in
D：led; in
答案(点此获取答案解析）
B
The farmer _______ us _______ his farm.
A：leaded; to
B：led; to
C：leaded; in
D：led; in
物与足量水反应，在标准状况下得到672mL混合气体，将混合气体电火花点燃，恰好完全反应，则原混合物中钠、氧化钠、过氧化钠的物质的量之比为